CN110172984A - A kind of concordant, landslide complicated geological environment roadbed side slope construction method - Google Patents
A kind of concordant, landslide complicated geological environment roadbed side slope construction method Download PDFInfo
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- CN110172984A CN110172984A CN201910523496.3A CN201910523496A CN110172984A CN 110172984 A CN110172984 A CN 110172984A CN 201910523496 A CN201910523496 A CN 201910523496A CN 110172984 A CN110172984 A CN 110172984A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/046—Open sewage channels
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
It the invention discloses a kind of concordant, landslide complicated geological environment roadbed side slope construction method, mainly comprises the steps that flatten roadbed high slope surface loose soil bed and tamp, get foundation pit vertically downward along slope surface and in the fixed layer of steel wire net of slope surface;The multiple ruggedized constructions of filling form multiple rows of gradient and reinforce in foundation pit, the ruggedized construction of adjacent two rows is staggered, the ruggedized construction is that bottom is provided with the cylindrical body for radially extending the intermediate hollow out of device, and the device that radially extends includes at least one set of hinged telescopic arm for diamond shape;Several friction piles are set at slope foot, and the friction pile insertion below ground has poured barrette, and each barrette upper end is connected with each other using crossbeam, is connected with triangular prism shaped stake with barrette corresponding position on the crossbeam.The invention can ensure that concordant, landslide complicated geological environment roadbed high slope safety, reduce slope treatment expense to reach the sliding for avoiding or slowing down gliding mass and reduce the purpose of the generation of landslide disaster.
Description
Technical field
The present invention relates to field of civil engineering.It is more particularly related to a kind of concordant, landslide complicated geological environment
Roadbed side slope construction method.
Background technique
The high slope of the complicated landforms such as concordant, landslide, complex geological condition is relatively conventional in mountain area, when high slope is by land used
When boundary limits or has the influence of important existing building, needs to excavate high slope, reinforce, supporting etc. is related to high slope
Excavation method, precipitation method, reinforcement means, method for protecting support, operation platform building, stability of slope monitoring and evaluation, the later period dimension
Shield and many technical problems such as construction safety urgently need a kind of concordant, landslide complicated geological environment roadbed high slope to receive thus
Slope reinforced construction method solves problems.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of concordant, come down complicated geological environment roadbed side slope construction method,
It can guarantee concordant, landslide complicated geological environment roadbed high slope safety, reduces slope treatment expense, avoids or slow down to reach
The sliding of gliding mass reduces the purpose of the generation of landslide disaster.
In order to realize these purposes and other advantages according to the present invention, a kind of concordant, landslide complicated geological ring are provided
Border roadbed side slope construction method, mainly comprises the steps that
It is tamped Step 1: being flattened to roadbed high slope surface loose soil bed, gets foundation pit vertically downward along slope surface and on slope
Layer of steel wire net is fixed in face;
Step 2: the multiple ruggedized constructions of filling form multiple rows of gradient reinforcing in foundation pit, the ruggedized construction of adjacent two rows is interlocked
Setting, the ruggedized construction are that bottom is provided with the cylindrical body for radially extending the intermediate hollow out of device, the cylindrical body outer diameter and
Foundation pit size is consistent, and the device that radially extends includes at least one set of hinged telescopic arm for diamond shape, and every group of telescopic arm divides up and down
It is not hinged with upper mounting plate and lower platform, multiple groups telescopic arm upper mounting plate is connect with lower platform, every group of telescopic arm hinged place and upper flat
Platform and lower platform are provided with hole, and the hole is provided with kelly and hole activity is clamped, and the kelly corresponds to hole site setting
There is card slot, the other end of the kelly passes through the cylindrical body and extends beyond cylinder along cylinder axis direction;
Step 3: the ruggedized construction reach needed for after depth, the kelly is extracted out out of described cylindrical body, described in pushing
Cylindrical body, the device that radially extends are squeezed, the telescopic arm compression, to reach the extension of radial direction, Xiang Suoshu
Concrete perfusion in the cylindrical body of hollow out;
Step 4: several friction piles are arranged at slope foot, the friction pile insertion below ground has poured barrette, each side
Shape stake upper end is connected with each other using crossbeam, is connected with triangular prism shaped stake with barrette corresponding position on the crossbeam, described
The central axes of barrette are overlapped with the central axes of stake triangular prism shaped above crossbeam.
Preferably, it in the step 2, in foundation pit before filling ruggedized construction, corresponds in steel wire and is cut at foundation pit position
Opened round hole, then the ruggedized construction is embedded to the foundation pit.
Preferably, the cylindrical body of the intermediate hollow out is formed by armored concrete is prefabricated.
Preferably, the telescopic arm is made of Steel material.
Preferably, the upper mounting plate of the radial expansion device and lower platform are consistent with the cross section of the cylindrical body.
Preferably, the central axes of the upper mounting plate and lower platform are overlapped with the central axes of the cylindrical body.
Preferably, the device two adjacent groups telescopic arm that radially extends is vertically arranged.
Preferably, in the step 4, the cross section of the barrette is square, the triangular prism shaped stake it is transversal
Face is isosceles triangle, and vertex and base vertical are projected in downwards on the side of the square, a rib of triangular prism shaped stake
Face slope surface, the faceted pebble opposite with this rib is parallel with roadbed, and the upper surface of the barrette is beyond roadbed 5-10cm with water supply and sewage.
Preferably, the barrette and triangular prism shaped stake are reinforced concrete structure.
Preferably, at slope foot after the completion of antiskid pile driving construction, it is laid with multistage discharge pipe line in flash slope surface, is resisted described in the side of slope
Open drain is dug through on the outside of sliding pile, each discharge pipe line is connected and fixed with each ruggedized construction, with slope surface parallel laid in steel wire
In net, the discharge pipe line is staggered in gradient, bottom discharge pipe line lower end pass through the friction pile by water be discharged into draining it is bright
Ditch, each discharge pipe line upper end edge roadbed horizontal cutting remove, and upper surface is provided with the steel grid that aperture is 2-5cm, the draining
Pipeline is poured by cement.
The present invention is include at least the following beneficial effects:
The first, the ruggedized construction bottom that the present invention uses, which is provided with, radially extends device, after ruggedized construction is embedded to foundation pit
It pushes, the device that radially extends is squeezed in bottom of foundation ditch, the compressed stretching, extension of telescopic arm, to reach prolonging for radial direction
It stretches, then to penetration concrete in foundation pit, is fixed on the ruggedized construction in foundation pit, increases the stability of ruggedized construction,
Enhance the consolidation effect to high slope;
The second, friction pile is arranged in the present invention at slope foot, and the friction pile includes the barrette for being inserted into below ground, will be each
The crossbeam of barrette connection and the triangular prism-shaped stake being set to above crossbeam, the barrette are inserted into below ground, increase
The stability of friction pile, the crossbeam connect each barrette, keep friction pile stability stronger, and triangular prism-shaped is arranged above crossbeam
Stake, a rib face slope surface of triangular prism shaped stake, the faceted pebble opposite with this rib is parallel with roadbed, can while proper drainage,
It prevents from sliding the influence road such as rubble under concordant, landslide complicated geological environment in high slope, high slope is reinforced;
Third, the present invention are laid with discharge pipe line in slope surface, and slope foot digs through open drain, slope surface ponding is discharged effectively, subtracts
The light active earth pressure and water pressure of the friction pile behind, increases the overall stability of side slope, in construction and use
More added with safety guarantee;
4th, concordant of the present invention, landslide complicated geological environment roadbed side slope construction method, can effectively ensure that suitable
Layer, landslide complicated geological environment roadbed high slope safety, reduce slope treatment expense, avoid or slow down the sliding of gliding mass, reduce
The generation of landslide disaster.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the structural schematic diagram before ruggedized construction use of the present invention;
Fig. 2 is structural schematic diagram when ruggedized construction of the present invention uses;
Fig. 3 is the structural schematic diagram of friction pile of the present invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
It should be noted that experimental method described in following embodiments is unless otherwise specified conventional method, institute
Reagent and material are stated, unless otherwise specified, is commercially obtained;In the description of the present invention, it should be noted that remove
Non- separately to have specific regulation and limit, term " installation ", " connected ", " setting " shall be understood in a broad sense, for example, it may be stationary phase
Even, setting, may be a detachable connection, is arranged, or be integrally connected, be arranged.For those of ordinary skill in the art and
Speech, can understand the concrete meaning of above-mentioned term in the present invention with concrete condition.Term " transverse direction ", " longitudinal direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, be not instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.
As shown in Fig. 1, Fig. 2 and Fig. 3, the present invention provides a kind of concordant, landslide complicated geological environment roadbed high slope
Construction method mainly comprises the steps that
It is tamped Step 1: being flattened to roadbed high slope surface loose soil bed, gets foundation pit vertically downward along slope surface and on slope
Layer of steel wire net is fixed in face;
Step 2: the multiple ruggedized constructions of filling form multiple rows of gradient reinforcing in foundation pit, the ruggedized construction of adjacent two rows is interlocked
Setting forms multiple rows of gradient and reinforces, and the ruggedized construction is that bottom is provided with the cylinder for radially extending the intermediate hollow out of device 100
Body 101,101 outer diameter of cylindrical body is consistent with foundation pit size, and the device 100 that radially extends includes at least one set of hinged for water chestnut
The telescopic arm 102 of shape, every group of about 102 telescopic arm have been respectively articulated with upper mounting plate 103 and lower platform 104, multiple groups telescopic arm 102
Upper mounting plate 103 is connect with lower platform 104, and every group of 102 hinged place of telescopic arm and upper mounting plate 103 and lower platform 104 are provided with
Hole is provided with kelly 105 across the hole and hole activity is clamped, and the corresponding hole site of the kelly 105 is provided with card slot, the card
The other end of bar 105 passes through the cylindrical body 101 and extends beyond cylinder along 101 axis direction of cylindrical body;
Step 3: the kelly 105 is extracted out out of described cylindrical body 101 after the ruggedized construction reaches required depth, under
The cylindrical body 101 is pressed, the device 100 that radially extends is squeezed, and the telescopic arm 102 compresses, to reach radial side
To extension, concrete perfusion in the cylindrical body 101 of Xiang Suoshu hollow out;
Step 4: being provided with several friction piles 200 at slope foot, the friction pile 200 is inserted into the below ground side of having poured
Shape stake 201, each 201 upper end of barrette using crossbeam 202 be connected with each other, on the crossbeam 202 with 201 corresponding position of barrette
Place is connected with triangular prism shaped stake 203, the central axes of the 202 triangular prism shaped stake 203 in top of central axes and crossbeam of the barrette 201
It is overlapped.Concordant of the present invention, landslide complicated geological environment roadbed side slope construction method, after slope surface leveling compacting, vertically
It is embedded to multiple ruggedized constructions downwards, several friction piles 200 are then set at slope foot, wherein the ruggedized construction includes hollow
Cylindrical body 101 and radially extend device 100, it is described radially extend device 100 by it is at least one set of be hingedly diamond shape telescopic arm
102, every group of telescopic arm both ends have been respectively articulated with upper mounting plate 103 and lower platform 104,102 stacked on top of multiple groups telescopic arm, and upper one group
The lower platform 104 of telescopic arm is connect with the upper mounting plate 103 of next group of telescopic arm, the upper mounting plate 103 and the circle of top telescopic arm
The connection of 101 bottom of cylinder, the ruggedized construction further includes kelly 105, and card slot, every group of telescopic arm are provided on the kelly 105
102 hinged places and upper mounting plate 103 and lower platform 104 are provided with hole, the kelly 105 pass through the hole and by card slot with
Hole activity clamping;The friction pile 200 is inserted into below ground and pours squarely stake 201, and setting crossbeam 202 connects each barrette
It connects, triangular prism shaped stake 203 is set on the crossbeam 202.Roadbed high slope surface loose soil bed is arranged first when construction smooth
Straight tamper is real, gets foundation pit vertically downward along slope surface, and the foundation pit is staggered, in the fixed layer of steel wire net of slope surface, in steel wire
Circular hole is cut off at corresponding foundation pit position, then the ruggedized construction is embedded in foundation pit, needed for ruggedized construction arrival
After depth, the kelly 105 is extracted out out of described cylindrical body 101, push the cylindrical body 101, it is described to radially extend device 100
It is squeezed in bottom of foundation ditch, the compressed stretching, extension of telescopic arm 102, to reach the extension of radial direction, then to being filled in foundation pit
Enter concrete, completes the fixation of ruggedized construction.Friction pile 200 is then set at slope foot, and below ground digs out rectangular hole and pours
Barrette 201, each 201 top of barrette are connected by crossbeam 202, and triangular prism shaped stake 203 is connected above crossbeam 202, are completed anti-
The construction of sliding pile 200.Concordant of the present invention, landslide complicated geological environment roadbed side slope construction method, in the fixed steel of slope surface
Silk screen reinforces slope surface, prevents rubble, and soil slides, and is embedded to ruggedized construction, multiple ruggedized constructions vertically downward in slope surface
It is staggered in gradient, high slope is reinforced, while friction pile 200 is set at slope foot, prevent concordant, landslide intricately
Sliding rubble etc. under matter environment in high slope influences road, reinforces to high slope.The ruggedized construction setting is described flexible
Arm 102, by longitudinal extruding, the compressed stretching, extension of telescopic arm 102 blocks ruggedized construction to reach the extension of radial direction
In underground, the reinforcement effect to high slope is enhanced;Kelly 105 is set, and the kelly 105 passes through each hole and consolidated by card slot
It is fixed, it prevents when the ruggedized construction is embedded to foundation pit, the radial expansion device 100 is squeezed and is stretched in advance by compression
Exhibition avoids the ruggedized construction from being stuck in the middle part of foundation pit, is unable to reach required depth;The friction pile 200 is set, be inserted into ground with
Under pour squarely stake 201, longitudinal cross-section product is big, increases the stability of the friction pile 200, enhances antiskid function
Energy;The crossbeam 202 connects each barrette, and each barrette is made to form an entirety, improves antiskid performance;The crossbeam 202
The upper triangular prism shaped stake 203 of setting, can stop sandstone particle substance, rainwater can be made to pass through while increasing earth-retaining function, prevent
Only the friction pile is caused stability to reduce by rainwater immersion for a long time.202 top of central axes and crossbeam of the barrette 201
The central axes of triangular prism shaped stake 203 are overlapped, and friction pile 200 is made to be longitudinally formed one, and centre is connected with crossbeam 202, are made described anti-
Sliding pile 200 is laterally linked together, and vertical and horizontal antiskid simultaneously substantially increases the antiskid performance of the friction pile 200.
In another technical solution, in the step 2, in foundation pit before filling ruggedized construction, foundation pit is corresponded in steel wire
Circular hole is cut off at position, then the ruggedized construction is embedded to the foundation pit.
In another technical solution, as shown in Figure 1, the cylindrical body 101 of the intermediate hollow out it is prefabricated by armored concrete and
At.The cylindrical body 101 is made of armored concrete, provides guarantee for the reinforcing of high slope.
In another technical solution, as shown in Figure 1, the telescopic arm 102 is made of Steel material.The telescopic arm 102 by
Steel material is made, and enhances the stability of the telescopic arm 102, fixes it in bottom of foundation ditch, increases the ruggedized construction
Stability.
In another technical solution, as shown in Figure 1, the upper mounting plate 103 and lower platform 104 of the radial expansion device 100
It is consistent with the cross section of the cylindrical body 101.101 outer diameter of cylindrical body is consistent with foundation pit size, the radial expansion device
100 upper mounting plate 103 and lower platform 104 is consistent with the cross section of the cylindrical body 101, ensure that the ruggedized construction can be suitable
Benefit enters foundation pit, avoids the ruggedized construction from being stuck in the middle part of foundation pit, is unable to reach required depth.
In another technical solution, as shown in Figure 1, the central axes of the upper mounting plate 103 and lower platform 104 and the cylinder
The central axes of body 101 are overlapped.It ensure that the ruggedized construction can smoothly enter into foundation pit, increase the stabilization of the ruggedized construction
Property.
In another technical solution, as shown in Figure 1, the 100 two adjacent groups telescopic arm 102 of device that radially extends vertically is set
It sets.Two adjacent groups telescopic arm 102 is vertically arranged, and be ensure that the device that radially extends extends around, is improved the reinforcing
The stability of structure provides guarantee for Reinforcing High Slope.
In another technical solution, as shown in Fig. 2, the cross section of the barrette 201 is square, it is described triangular prism shaped
The cross section of stake 203 is isosceles triangle, and vertex and base vertical are projected in downwards on the side of the square, triangular prism shaped
One rib face slope surface of stake 203, the faceted pebble opposite with this rib is parallel with roadbed, and the upper surface of the barrette 201 exceeds road
Base 5-10cm is with water supply and sewage.The vertex and bottom edge of the isosceles triangle cross section of the triangular prism-shaped stake 203 respectively fall in rectangular
On the side of the square cross section of stake 201, a rib face slope surface of the triangular prism shaped stake 203, can to the sandstone that slide and
Soil is shunted and is stopped, and forced area is increased, and slows down stress intensity, improves the antiskid performance of the friction pile 200,
The upper surface of the barrette 201 exceeds roadbed 5-10cm simultaneously, rainwater can be allowed to smoothly flow out while stopping sandstone, has
There is certain drain function, prevents the friction pile from being caused stability to reduce by rainwater immersion for a long time.
In another technical solution, as shown in Fig. 2, the barrette 201 and triangular prism shaped stake 203 are armored concrete
Structure.The barrette 201 and triangular prism shaped stake 203 are set as reinforced concrete structure, improve the steady of the friction pile 200
It is qualitative, guarantee is provided for Reinforcing High Slope.
In another technical solution, at slope foot after the completion of antiskid pile driving construction, multistage discharge pipe line, slope are laid in flash slope surface
Open drain is dug through on the outside of friction pile described in side, each discharge pipe line is connected and fixed with each ruggedized construction, with slope surface parallel laid
It is located in steel wire, the discharge pipe line is staggered in gradient, and bottom discharge pipe line lower end passes through the friction pile and arranges water
Entering open drain, each discharge pipe line upper end edge roadbed horizontal cutting removes, and upper surface is provided with the steel grid that aperture is 2-5cm,
The discharge pipe line is poured by cement.The present invention is laid with discharge pipe line in slope surface, and slope foot digs through open drain, the draining
Pipeline is fixedly connected with ruggedized construction, can be in slope stability, while the same ruggedized construction of the discharge pipe line is handed in gradient
Mistake arrangement, is discharged slope surface ponding effectively, discharge pipe line can be prolonged the service life by cement production systD, the discharge pipe line upper end
Face is provided with steel grid, and sandstone can be stopped to enter to block pipeline, the discharge pipe line is arranged, alleviates the friction pile
The active earth pressure and water pressure of behind, increase the overall stability of side slope, in construction and use more added with safety guarantee.
Number of devices and treatment scale described herein are for simplifying explanation of the invention.To application of the invention,
Modifications and variations will be readily apparent to persons skilled in the art.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (10)
1. a kind of concordant, landslide complicated geological environment roadbed side slope construction method, which is characterized in that mainly include following step
It is rapid:
It tamps Step 1: being flattened to roadbed high slope surface loose soil bed, get foundation pit vertically downward along slope surface and consolidates in slope surface
Determine layer of steel wire net;
Step 2: the multiple ruggedized constructions of filling form multiple rows of gradient reinforcing in foundation pit, the ruggedized construction of adjacent two rows is staggered,
The ruggedized construction is that bottom is provided with the cylindrical body for radially extending the intermediate hollow out of device, the cylindrical body outer diameter and foundation pit ruler
Very little consistent, the device that radially extends includes at least one set of hinged telescopic arm for diamond shape, and every group of telescopic arm is respectively articulated with up and down
There are upper mounting plate and lower platform, multiple groups telescopic arm upper mounting plate is connect with lower platform, and every group of telescopic arm hinged place and upper mounting plate are under
Platform is provided with hole, and the hole is provided with kelly and hole activity is clamped, and the kelly corresponds to hole site and is provided with card slot,
The other end of the kelly passes through the cylindrical body and extends beyond cylinder along cylinder axis direction;
Step 3: extracting the kelly out out of described cylindrical body after the ruggedized construction reaches required depth, pushing the cylinder
Body, the device that radially extends are squeezed, the telescopic arm compression, thus reach the extension of radial direction, Xiang Suoshu hollow out
Cylindrical body in concrete perfusion;
Step 4: several friction piles are arranged at slope foot, the friction pile insertion below ground has poured barrette, each barrette
Upper end is connected with each other using crossbeam, is connected with triangular prism shaped stake with barrette corresponding position on the crossbeam, described rectangular
The central axes of stake are overlapped with the central axes of stake triangular prism shaped above crossbeam.
2. a kind of concordant as described in claim 1, landslide complicated geological environment roadbed side slope construction method, feature exist
In, in the step 2, in foundation pit before filling ruggedized construction, is corresponded in steel wire and cut off circular hole at foundation pit position, then
The ruggedized construction is embedded to the foundation pit.
3. a kind of concordant as described in claim 1, landslide complicated geological environment roadbed side slope construction method, feature exist
In the cylindrical body of the intermediate hollow out is formed by armored concrete is prefabricated.
4. a kind of concordant as described in claim 1, landslide complicated geological environment roadbed side slope construction method, feature exist
In the telescopic arm is made of Steel material.
5. a kind of concordant as described in claim 1, landslide complicated geological environment roadbed side slope construction method, feature exist
In the upper mounting plate and lower platform of the radial expansion device are consistent with the cross section of the cylindrical body.
6. a kind of concordant as described in claim 1, landslide complicated geological environment roadbed side slope construction method, feature exist
In the central axes of the upper mounting plate and lower platform are overlapped with the central axes of the cylindrical body.
7. a kind of concordant as described in claim 1, landslide complicated geological environment roadbed side slope construction method, feature exist
In two adjacent groups telescopic arm is vertically arranged.
8. a kind of concordant as described in claim 1, landslide complicated geological environment roadbed side slope construction method, feature exist
In in the step 4, the cross section of the barrette is square, and the cross section of the triangular prism shaped stake is isoceles triangle
Shape, vertex and base vertical are projected in downwards on the side of the square, a rib face slope surface of triangular prism shaped stake, with this
The opposite faceted pebble of rib is parallel with roadbed, and the upper surface of the barrette is beyond roadbed 5-10cm with water supply and sewage.
9. a kind of concordant as described in claim 1, landslide complicated geological environment roadbed side slope construction method, feature exist
In the barrette and triangular prism shaped stake are reinforced concrete structure.
10. a kind of concordant as described in claim 1, landslide complicated geological environment roadbed side slope construction method, feature exist
In being laid with multistage discharge pipe line in flash slope surface, the row of digging through on the outside of friction pile described in the side of slope at slope foot after the completion of antiskid pile driving construction
The bright ditch of water, each discharge pipe line are connected and fixed with each ruggedized construction, with slope surface parallel laid in steel wire, the drainpipe
Road is staggered in gradient, and bottom discharge pipe line lower end passes through the friction pile and water is discharged into open drain, each discharge pipe line
Upper end edge roadbed horizontal cutting removes, and upper surface is provided with the steel grid that aperture is 2-5cm, the discharge pipe line poured by cement and
At.
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US5295769A (en) * | 1991-11-15 | 1994-03-22 | Daisho Shinki Kabushiki Kaisha | Stirring apparatus for improving ground |
CN2448925Y (en) * | 2000-07-24 | 2001-09-19 | 陶纪南 | Expansion crack pressure type prestressed mud injection anchor |
CN202416323U (en) * | 2011-12-15 | 2012-09-05 | 中国建筑第七工程局有限公司 | Temporary retractable foundation pit support |
CN108532397A (en) * | 2018-06-19 | 2018-09-14 | 云南建投中航建设有限公司 | It is a kind of that the method for roadbed and combined friction pile are consolidated using combined friction pile |
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